# ALPHASTACK vs Pocket Screw Machine

The clearest difference is device support: Pocket Screw Machine at 3 against ALPHASTACK's —. Pocket Screw Machine also leads on iOS requirement (15.0 vs 18.2). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ALPHASTACK | Pocket Screw Machine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (25 ratings)](https://appshunter.io/ios/app/pocket-screw-machine/id6801033982/reviews)** |
| Number of ratings | — | **25** |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 289 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [sho tsugawa](https://appshunter.io/developer/1757370725) | [Twist Games](https://appshunter.io/developer/1854442218) |

## What reviewers say

### ALPHASTACK

[App page](https://appshunter.io/ios/app/alphastack/id6759197822)

**In-app purchases:** none


### Pocket Screw Machine

[App page](https://appshunter.io/ios/app/pocket-screw-machine/id6801033982)

A unique color-sorting puzzle game where you manage screws on a spinning machine. Tap panels to release screws and match them to their colored plates before the rail overloads. Features special mechanics like mystery plates and gates for added challenge.

**Highlights:** Spinning machine sorting mechanic, Color-matching screw puzzles, Tap-to-release screw panels, Special game-changing parts (mystery plates, gates), Offline play, No timer or move counter

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ALPHASTACK free?

ALPHASTACK is free to download, with no in-app purchases.

### Is Pocket Screw Machine free?

Pocket Screw Machine is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*